Plow-lift.



Wl HJGH HGGNS, 5R.

mow LIFT. APPLICATION PLED DEG.15,1913. v m m39@ @mmm @fm a,

3 SHEETS-SHEET l,

W. H C. HIGGINS, JB.

PLOW LIFT.

' APPLICATION FILED DBD. 15, 1913 3,1 121595, .Patented om; 6, 1914.

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' tended in both directions, lthat there is an- Vi5 e ineens of a cinin im imparts motion to WILLIAM H. o. Tins, JR., on LAPORTE,

INDIANA, ASSIGNOR T l. BU'EL' COM- LAPORTE, INDIANA, .At CORPORATION 40l? INDANA.

Serial No. 806,663.

PANT.

PLOW-LIFT.

,112, 795 Specification of Letters Patent.

Appcation filed December l5, 1913.

i o all whom Iit may concern:

Be it known that I, W'ILLAM H. C. Hm eine, Jr., a citizen oi' the United States, residing at Laporte, in the countyio Laporte and State of Indiana, have invented a certain new and useful Improvement in Plow-v Lifts9 of which the following is a specificetion. ,y

lviy invention relates to improvements in gang piowe, particularly with regard to the meclmnism for lifting@n and, lowering them into the ground.

lt is illuetrnted Somewhat diagrammaticm'ly in one. of its forms in the accompany' ing' drawings, wherein- Figure l is a pian View of a portion of' .n plow device containing my improvemente; Fig. 2 is an end elevation with parte broken away looking toward a portion of the device shown in Fig. l as indicated by V the arrow ig. 3 iS n section on the line .0f-3 oz" Fig. i with the parte inthe :same position es they :ire shown in Fig. 2, that is7 with the nlowe ont of the ground; Fig. i ie :1 similar or section with the parte arranged to `perni J e plow, to enter the ground; Fig. 5 is n similar Cross section with the parte in the position which they assume When the ,ol-.owe are in the ground; Fig. (i is :i eimiler cross section with the parte in the position which they assume. 'when plow if; lifted. v

T re indicated hy the saine letter fffnies.

everse treme piece associated o en ed manner yi'ith the longitudinal e M mounted on the axle A2 ns with the diiving Wheel A3 and carries the s rocket Wheel A". which by the `enincket wheel A on the shaft A" recta'ngrulni;J in' crees section. It will loe understood, of course, that the frame is exother Wheel A" at the other end of the shaft A? and that the plows dragged and con. tl'olled h v e Suitable mechanism in thel rear of the parte here shown. Such additional parts are "forth in my copending epplicntion 786,211., filed August 23, 1913, and since they Yform no o rt of the invention. here under considerni;` i., l have not deemed it-neeessm'y to illustrate them more hilly,

sind, indeed, any form of structure relating to the plow beams and the particular rear supporting wheels, chain and other parts for raising and lowering them could be employed in connection with what is the subject matter of this invention. The frame .here illustratedv is supposed to be n portion Nof the frame associated with tive ploWs,

and the port which is illustrated is the driving meehunisntfor all the plows and the controlling mechanism for one oi them is placed in 'front of kthe middle plow.

'The sprocket yWhee'lwli forms perf. of or contains Within itself nclutch mechanism which is not here illustrated, because it forms part of the subject matter of the prior application herein above referred to. This clutch mechanism contains a locking Wheel B, a roller BL on an arm B2 from which .leads e rope lig. By pulling the rope the roller is Withdrawn from :in aperture in the wheel B and the clutch is permitted to operate so as to cause the shaft A@ to make one complete revolution. lf the'rope lis has been previously thickened7 the clutch `will operatel to threw the shaft A6 out of gear after it has completed one revolution. In other words, the meehnniein at this point not fully, shown mey any clutch which tends to ,connect the moving;F part with the shaft, and particularly any clntch which makes such connection and y` 'then discngegee thepnrt when the shet i G made one revolution.'

C is e. gear Wheel on the shaft A meehng; with the' gear Wheel C1 on the short shaft C2. Attached to this shaft and geen Wheel C2, C1 is the cam C3.

C* ie o downwardly open Jeheped device having et its lower extremities the rollers C, CG.l 'lt is rigidly mounted on the shaft' C7 and the finger CE is also rigidly connected to the shaft C7 and is perforated at C to permit the free pes-sage of the rod C10.' This rod is. pivcted et C to one end of theshort lever C127 which is itself goin lote-d at C1 vto the lower-end of link C end is provided with n latch end CUs to'enfgnge e block C held by the bolt C" on the frame ieee A.- The link C1 is i "otally mounted the shaft @7. The cani C? when it rotates-strom the poeition .ehownfin' Fig.l 3- to' that .shown in e.

Patenten oet. e, iet/i.

. curely attached at-one end to C11 and at theoth'er to a pin C19 on the for lifting the rocks the V-shaped part to its new position, thus depressing the finger 08. A .spiral spring C18 encircling the rod C1", is Sethe pivot pin linger CS. From this it appears that depressing the finger Cs compresses the spring (11S and causes it to tend to rock the lever C12 on its pivot, or, in other words, to bring it into the position shown in Fig. 4. The action of this spring, however, is not strong enough to rock the lever C12 until its latched end C1 is loosened or freed from contact under pressure with the block C1".

Putting' the spring C18 under pressure is the first result of rotating the shaft in the direction of the indicatedarrow. The next thing which it does is to bring the cam D which is mounted on the shaft A against a roller D1 on the link C14', thus tending to force the link at its lower end toward the left, which is indicated in Fig. 4 by the gap between the frame d f C piece E and the lower en o the link '14 as compared'with the relation of these parts as indicated in Fig. 3.'

The cam D in contact with the roller D1 is illustrated in dotted'lines in Fig. 4c. The shaft A is now moved one quarter of its revolution and the particular cam D under consideration, in cooperation with the cam C3, has brought the parts intoV the position indicated in Fig. Il, where the spring U1 is under compression, the lever C12 has been rocked on its pivot and released from the block C1.

-F isa rod pivoted at C13 tothe lower end of the link C11 and carried backward to a point where it is connected to a mechanism particular plow in question.

The plows being out of the ground, when the parts are in the position as indicated in Fig. 3, the particular plow attached to the rod F is being held out of the ground by reason of the engagement of the end C15 of the lever C12 with the. head C1, but when the parts are forcedinto-thc position indicated in Fig, l, the spring C18 being under compression raises the ond C15 ot the lever which has been iirst retracted so that the plow is ready to be lowered into the ground, and this is accomplished by the further rotation of the shaft A'ivhich brings the cam D back to its original position as shown in Figs. 3 and 5. rl`h.is,'however, has resulted, the moment the foam Dis' freed from the roller D1, which is immediately after the parts have passed from the position shown in Fig. 4 in permitting the link to swing backwardly into the position indicated in Fig. 5, which carries the rod F rearwardly,

1 thus permitting the plow in questionto drop into the ground.

T he mechanismcontaining the gears C,

piece C, tlie'cam.,.C3 and C1, the V-shaped their associated parts is not duplica-ted, for

. and setting' the f parts,

.take them 'out of or let them its purpose is, by turning the shaft G7 which extends across the'machine, to put the pressure on each of the fingers CS, there being one for each plow, of the springs C18.

With each plow there is associated a 'ca-rn D, but these cams are" staggered-so as draw back theplow rod F and with it the lever C12, and permit-the latter to be thrown into the position shown in Fig. 4c by the pressure of the spring C13. Some portion of the mechanism associated 5, comesto rest upon the frame and the plow is dragged forward in the usual manner. The sha-ft A has made a complete revolnf. tion, but the gear (l1 tion, and therefore the cam C3 is now turned downwardly instead of upwardly as indi cated in Fig. 3. If now theoperator desires to raise the plows from thev ground,- he has; only to pull on the rope B3, .whereupon the shaft Au will be coupled to the sprocket wheel A5 so as to be made to make one complete revolution as before.

The first action by reason oi' the engage-f ment of the cam C with the roller (l5 on one leg of the V-shaped piece is to swing the V-shaped piece to the left on the shaft C7, to lift upwardly all the fingers C8 and thus put a tensionl on all of the springs G18 and so throw all of the levers C12 downwardly. This rotational action of the shaft ik causes the cam D to descend, as indicated in Fig. 6, and to throw the double link C1* to the left. This permits all or' the parts to come into the position shown vin Fig. G, because the tension on the spring C18 tends to throw the end C15 of the lever C1? down upon the frame and back of the block C16. The plow is lifted out of the ground by the retreat toward the left-ot the lower end of the link- C14, and when a further motion of the shaft A. from the position shown in Fig.'6 disengages the cam D from the roller D1, the

and thus to compress each f with the plows when the part Fis in the position shown in Fig has made a half revolu.`

C14, and assum link C11 will move slightly toward the right and bring the parts again to the position' shown in Fig. 3, where the plows are locked' the staggered 5 roller D1', the ft same action willtake place and at. the of the cycle all of the plowswill. be locked4r out of the ground. As each ot cams D reaches its respective in position out of the ground. Thus itis" possible l by positioning and proportioning' or lower all of the plows so as to successively drop into the to successively raise f ground in such manner that they will begin to plow or discontinue plowing a line at substantially right angles to the line of travel of 'the machine.

The use and operation ci my invention has already been perhaps suiiiciently describedn An apparatus constructed as here shown `so as to make a complete machine with any the gear wheel which controls the lockingmechanismv has made one-half of one revolution. This, as already explained, will 'fre'- snit, assumingthat at the beginning of "the operation the plows were locked out oi the ground as indicated in 3, in releasing the lock and perl'x'iitting,y the plows to Successively drop into the ground in working position. YWhen the operator desires to take them ont ci' the ground, he can pull upon i the rope as before and releasethe rope as soon, as the mechanism is started. At this moment the parte are in the position indicated in Fig. 5 and the shaft A will be rotating the rollers and the gear wheel C1 will complete its complete rotation or perform the second haiil thereof. rhis, as previously explained, retracts the plow rods,

raises the ploivs out of the ground, and finally causes the loch to engage and to operate 'to loch the plows in. position out of the ground. Y

it will be noted. that l have selected arbitrarily 1T and jfor the teeth C and C1, thus giving1 (l1 twice as many teeth as C. lt will be quite obvious that any other suitable number might have been used.

l claim: l

l. A plow lift mechanism comprising a movable part, a. plow rod connected thereto, a spring actuated lock on the movable part, means for moving the movable part to lift or lower the plows and means to successively apply tension or pressure to the spring to canse it to engage or jtree the lock.

2. A plow lift mechanism comprising a svvingingfpart, a plow rod connected thereto, a loch on Vthe movable part, a spring to ac- -tnate i t,'means for moving the movable part to lift .or lower the plows 'and' means to successively apply tension or pressure to the 'spring' to cavuse it to engage or free the lock.

3. A plow lift mechanism comprising` a depending swinging part, a plow rod connected to the lower end thereof, a loclron the movable part, a spring to actuate it, means tor moving the part to 'lift or lower the plows and means to successively 'apply tension or pressure tothe spring to cause it to engage or free the loch.

4. A plow lift mechanism comprising a depending swingingr part, a plow rod connected thereto, a lock on the movable part containing a pivoted portion, a spring to actuate it, means for moving the movable part to lift or lower the plows and means to ysuccessively apply tension or pressure to the spring to cause it to swing the pivoted partand thus to engage or free the' lock.

A. plowliftmechanism comprisinga pivoted link, a plow rod connected with the lower end thereof, a pivoted lock lever on the end of the link, a spring connected with. the free end of such lever, means for swinging the link to lift or lower the plows and means to successively apply tension or pres sure to the spring to cause it to rock the loch lever on its pivot.

6, A plow lift mechanism comprising a sei-ics of pivoted links, a series of plow rods connected one to the lower end of each such link, a pivoted lock lever on the end of the link, a spring connected with the free end of such lever, means to successively `'apply tension or pressure to all the springs to cause them to tend to rock the lock lever on its pivot and means for successively,r swinging the links to lift or lower the plows in succession.

In testimony whereof, l affix my signature in the presence of two witnesses this 25th day of November, 1913.

WVILLAM H. C. MiG-(HNS, n.

Witnesses:

MINNIE Summon, Bessin S. RICE.

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